PT-2016-3351 · Gnome+1 · Libgrss+1

Michael Catanzaro · Published 2016-10-09 · Updated 2021-10-25 · CVE-2016-20011

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions libgrss versions prior to 0.7.1

Description The issue is related to the failure of libgrss to perform TLS certificate verification when downloading feeds. This is due to the default behavior of SoupSessionSync, allowing remote attackers to manipulate feed contents without detection. The vulnerability can be exploited by a remote attacker to impact data integrity.

Recommendations For libgrss versions prior to 0.7.1, update to version 0.7.1 or later to resolve the issue. As a temporary workaround, consider disabling the use of SoupSessionSync until a patch is available. Restrict access to feeds from untrusted sources to minimize the risk of exploitation.

Fix

Improper Certificate Validation

Weakness Enumeration

CWE-295

Related Identifiers

BDU:2021-04614

CVE-2016-20011

MGASA-2021-0343

Affected Products

Debian

Libgrss

References · 32

• https://nvd.nist.gov/vuln/detail/CVE-2016-20011 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2016-20011 · Vendor Advisory
• https://gitlab.gnome.org/GNOME/libgrss/-/issues/4 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-20011 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-20011 · Vendor Advisory
• https://bugzilla.gnome.org/show_bug.cgi?id=772647 · Vendor Advisory
• https://gitlab.gnome.org/GNOME/libgrss/-/merge_requests/7.patch · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-20011 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-04614 · Security Note
• https://cve.org/CVERecord?id=CVE-2016-20011 · Security Note
• https://osv.dev/vulnerability/MGASA-2021-0343 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2021-0343.html · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2016-20011 · Vendor Advisory
• https://t.me/cvenotify/15344 · Telegram Post
• https://t.me/cvenotify/19877 · Telegram Post